Why is an interlock shutdown triggered when the air pressure entering the heating furnace is low?
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Why is an interlock shutdown triggered when the air pressure entering the heating furnace is low?
There’s no air left, so the furnace goes out. Then the fuel gas accumulates, and that leads to a flash explosion
Do you know why it is necessary to measure the oxygen content in heating furnaces? Fuel gas keeps flowing into the heating furnace; what will be the consequences if there isn’t enough oxygen? It will definitely go out or the fuel gas won’t burn completely, resulting in a large accumulation of flammable gases in the furnace – isn’t that a serious safety hazard?
Prevent tempering； Prevent flash explosions after fire extinguishing!
The low air pressure interlock in the heating furnace should activate the quick-opening air valve and shut down the flue gas exhaust fan. Air is necessary to ensure combustion in the heater; a lack of air causes the fuel gas in the heater to accumulate rapidly, leading to a flash explosion and threatening the operation of the heater.
Thank you very much; it has deepened my understanding of heating furnaces.